I.up [美 əp, 英 ʌp]副up often appears as the second element of certain verb structures in English (back up, pick up, sit up, etc). For translations, see the relevant verb entry (back, pick, sit, etc).
The pesto will keep in a covered container in the refrigerator for up to one week and is also fantastic as a sandwich spread or to gussy up scrambled eggs.
Very few publications are free from the desire to gussy up traffic and that also leads to an environment where ever more incendiary positions are promoted.